# Labs | Bio vs Physarum

The clearest difference is price: Physarum at Free against Labs | Bio's $1.99. Labs | Bio's advantage is in-app purchases (none vs 6) and iOS requirement (17.0 vs 26.0). On update cadence, ads and device support there is nothing between them.

Physarum is free to download; Labs | Bio costs $1.99 up front. Physarum sells 3 one-off in-app purchases. Labs | Bio asks for nothing beyond the download.

Labs | Bio ships an update monthly, Physarum every 5 weeks. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Labs | Bio | Physarum |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[4.8 (34 ratings)](https://appshunter.io/ios/app/physarum-slime-mold/id6744574947/reviews)** |
| Number of ratings | — | **34** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 2 MB | 32 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Not Applicable](https://appshunter.io/developer/1743923679) | [GEORGY OSTROBROD](https://appshunter.io/developer/1875865758) |

## What reviewers say

### Labs | Bio

[App page](https://appshunter.io/ios/app/labs-bio/id6474491656)

**In-app purchases:** none


### Physarum

[App page](https://appshunter.io/ios/app/physarum-slime-mold/id6744574947)

Explore the fascinating emergent behavior of slime molds through a visually rich simulation. Adjust agent parameters, influence growth with intuitive controls, and discover complex, mesmerizing patterns.

**Highlights:** Slime mold behavior simulation, Autonomous agent control, Adjustable agent parameters, Maze solving and network formation, Vibrant color modes, Interactive system manipulation

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small developer tip | $1.99 | one-time |
| Medium developer tip | $3.99 | one-time |
| Big developer tip | $5.99 | one-time |


## Frequently asked questions

### Is Labs | Bio free?

Labs | Bio costs $1.99, with no in-app purchases.

### Is Physarum free?

Physarum is free to download, with in-app purchases available.

### Do Labs | Bio or Physarum have ads?

Neither Labs | Bio nor Physarum shows ads.

### Which is updated more often, Labs | Bio or Physarum?

Labs | Bio ships an update monthly, and Physarum every 5 weeks. Most recently, Labs | Bio was updated on November 4, 2026 and Physarum on November 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*